Earlier quoted context omitted.
I suspect you are Russian. Can I ask a dumb question? Russian language started to be used by civilians in 16 century. Before that, it used in churches only. (See Wikipedia for details). What language your grand....grand parents are used before 16 century?
I'm not a time traveler or the poster you are asking but I suggest you watch this, history of the evolvement of Russian https://www.youtube.com/watch?v=Y4cXIyyc-L0
Also, samples of history are incorrect, causing multiple LOL's.
[1]: https://en.wikipedia.org/wiki/Saints_Cyril_and_Methodius